./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:13,694 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:13,815 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:25:13,821 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:13,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:13,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:13,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:13,871 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:13,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:13,877 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:13,877 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:13,878 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:13,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:13,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:13,882 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:13,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:13,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:13,883 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:13,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:13,884 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:13,884 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:13,886 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:13,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:13,887 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:13,888 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:13,888 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:13,889 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:13,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:13,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:13,890 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:13,891 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:13,891 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:13,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:13,892 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:25:13,892 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:13,892 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:13,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:13,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:13,893 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:13,893 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2023-11-21 22:25:14,239 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:14,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:14,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:14,277 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:14,278 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:14,279 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2023-11-21 22:25:17,273 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:17,867 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:17,867 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2023-11-21 22:25:17,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/data/48e0fd5c5/0c417e969d5547e581a3b518fcfe3bfe/FLAG58c574df7 [2023-11-21 22:25:17,937 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/data/48e0fd5c5/0c417e969d5547e581a3b518fcfe3bfe [2023-11-21 22:25:17,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:17,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:17,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:17,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:17,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:17,956 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:17" (1/1) ... [2023-11-21 22:25:17,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64c2fa74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:17, skipping insertion in model container [2023-11-21 22:25:17,958 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:17" (1/1) ... [2023-11-21 22:25:18,086 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:18,436 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2023-11-21 22:25:18,445 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2023-11-21 22:25:19,393 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,394 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,395 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,396 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,398 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,413 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,414 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,416 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,417 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,420 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,421 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,422 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,423 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:19,859 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:25:19,861 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:25:19,862 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:25:19,864 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:25:19,866 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:25:19,875 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:25:19,876 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:25:19,877 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:25:19,878 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:25:19,878 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:25:20,054 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,055 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,061 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,081 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,160 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:20,197 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:20,212 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2023-11-21 22:25:20,213 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2023-11-21 22:25:20,270 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,271 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,271 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,272 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,273 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,280 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,282 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,282 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,283 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,284 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,285 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,285 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,331 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-21 22:25:20,332 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-21 22:25:20,333 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-21 22:25:20,336 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-21 22:25:20,338 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-21 22:25:20,340 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-21 22:25:20,341 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-21 22:25:20,347 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-21 22:25:20,348 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-21 22:25:20,349 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-21 22:25:20,408 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,417 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,418 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,423 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-21 22:25:20,437 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2023-11-21 22:25:20,474 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:20,834 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,835 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,835 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,836 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,836 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,836 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,836 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,837 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,837 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,838 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,838 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,838 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,838 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,838 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,838 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:20,846 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:20,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20 WrapperNode [2023-11-21 22:25:20,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:20,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:20,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:20,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:20,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:20,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,017 INFO L138 Inliner]: procedures = 690, calls = 1683, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 655 [2023-11-21 22:25:21,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:21,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:21,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:21,019 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:21,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,037 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,123 INFO L187 HeapSplitter]: Split 303 memory accesses to 8 slices as follows [2, 9, 3, 236, 5, 39, 6, 3] [2023-11-21 22:25:21,124 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,124 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,206 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,268 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:21,278 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:21,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:21,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:21,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (1/1) ... [2023-11-21 22:25:21,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:21,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:21,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:21,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:21,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:21,363 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2023-11-21 22:25:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2023-11-21 22:25:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-21 22:25:21,364 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-21 22:25:21,364 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-21 22:25:21,365 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-21 22:25:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:25:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:25:21,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:25:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 22:25:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 22:25:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 22:25:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 22:25:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 22:25:21,366 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-21 22:25:21,367 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-21 22:25:21,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-21 22:25:21,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-21 22:25:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:25:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 22:25:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 22:25:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 22:25:21,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 22:25:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 22:25:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 22:25:21,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 22:25:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 22:25:21,370 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2023-11-21 22:25:21,384 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2023-11-21 22:25:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:21,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:21,385 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-21 22:25:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-21 22:25:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-21 22:25:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-21 22:25:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2023-11-21 22:25:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2023-11-21 22:25:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:25:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:25:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2023-11-21 22:25:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2023-11-21 22:25:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 22:25:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 22:25:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 22:25:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 22:25:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 22:25:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 22:25:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 22:25:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 22:25:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 22:25:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 22:25:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 22:25:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 22:25:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 22:25:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 22:25:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 22:25:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 22:25:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2023-11-21 22:25:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2023-11-21 22:25:21,391 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-21 22:25:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-21 22:25:21,391 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-21 22:25:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-21 22:25:21,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:25:21,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:25:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:25:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 22:25:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 22:25:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 22:25:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 22:25:21,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 22:25:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2023-11-21 22:25:21,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2023-11-21 22:25:21,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:25:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:25:21,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:25:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 22:25:21,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 22:25:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 22:25:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 22:25:21,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 22:25:21,806 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:21,811 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:22,861 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:23,051 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:23,051 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:25:23,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:23 BoogieIcfgContainer [2023-11-21 22:25:23,053 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:23,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:23,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:23,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:23,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:17" (1/3) ... [2023-11-21 22:25:23,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f89c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:23, skipping insertion in model container [2023-11-21 22:25:23,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:20" (2/3) ... [2023-11-21 22:25:23,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f89c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:23, skipping insertion in model container [2023-11-21 22:25:23,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:23" (3/3) ... [2023-11-21 22:25:23,062 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2023-11-21 22:25:23,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:23,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:23,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:23,145 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3cb5aaca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:23,145 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:23,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2023-11-21 22:25:23,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-21 22:25:23,162 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:23,162 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:23,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:23,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash -386786481, now seen corresponding path program 1 times [2023-11-21 22:25:23,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:23,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665404400] [2023-11-21 22:25:23,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:23,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:25:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-21 22:25:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-21 22:25:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 22:25:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 22:25:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 22:25:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-21 22:25:24,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-21 22:25:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-21 22:25:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 22:25:24,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-21 22:25:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:25,018 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-21 22:25:25,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:25,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665404400] [2023-11-21 22:25:25,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665404400] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-21 22:25:25,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1287379428] [2023-11-21 22:25:25,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:25,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:25,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:25,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:25,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:25:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:25,699 INFO L262 TraceCheckSpWp]: Trace formula consists of 2261 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-21 22:25:25,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:25,800 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-21 22:25:25,801 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:25,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1287379428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:25,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-21 22:25:25,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-11-21 22:25:25,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112257018] [2023-11-21 22:25:25,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:25,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:25,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:25,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:25,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:25:25,844 INFO L87 Difference]: Start difference. First operand has 151 states, 73 states have (on average 1.1369863013698631) internal successors, (83), 74 states have internal predecessors, (83), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 22:25:26,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:26,391 INFO L93 Difference]: Finished difference Result 273 states and 398 transitions. [2023-11-21 22:25:26,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 22:25:26,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 54 [2023-11-21 22:25:26,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:26,411 INFO L225 Difference]: With dead ends: 273 [2023-11-21 22:25:26,411 INFO L226 Difference]: Without dead ends: 151 [2023-11-21 22:25:26,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-21 22:25:26,431 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 31 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:26,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 596 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:25:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-21 22:25:26,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-21 22:25:26,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 73 states have (on average 1.1232876712328768) internal successors, (82), 75 states have internal predecessors, (82), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-11-21 22:25:26,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 211 transitions. [2023-11-21 22:25:26,518 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 211 transitions. Word has length 54 [2023-11-21 22:25:26,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:26,519 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 211 transitions. [2023-11-21 22:25:26,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-21 22:25:26,519 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 211 transitions. [2023-11-21 22:25:26,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-21 22:25:26,523 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:26,523 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:26,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:26,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-21 22:25:26,748 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:26,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:26,749 INFO L85 PathProgramCache]: Analyzing trace with hash -13230616, now seen corresponding path program 1 times [2023-11-21 22:25:26,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:26,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739530857] [2023-11-21 22:25:26,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:26,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:26,891 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:25:26,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1982410461] [2023-11-21 22:25:26,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:26,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:26,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:26,893 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:26,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-21 22:25:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:27,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 2449 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-21 22:25:27,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-21 22:25:27,683 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:27,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:25:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739530857] [2023-11-21 22:25:27,684 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:25:27,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1982410461] [2023-11-21 22:25:27,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1982410461] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:27,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:27,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:25:27,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030102107] [2023-11-21 22:25:27,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:27,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:25:27,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:25:27,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:25:27,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:25:27,694 INFO L87 Difference]: Start difference. First operand 151 states and 211 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-21 22:25:28,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:28,311 INFO L93 Difference]: Finished difference Result 278 states and 397 transitions. [2023-11-21 22:25:28,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:25:28,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 63 [2023-11-21 22:25:28,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:28,320 INFO L225 Difference]: With dead ends: 278 [2023-11-21 22:25:28,320 INFO L226 Difference]: Without dead ends: 161 [2023-11-21 22:25:28,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:25:28,330 INFO L413 NwaCegarLoop]: 163 mSDtfsCounter, 36 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 907 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:28,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 907 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-21 22:25:28,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-21 22:25:28,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-11-21 22:25:28,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 79 states have internal predecessors, (86), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2023-11-21 22:25:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 225 transitions. [2023-11-21 22:25:28,366 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 225 transitions. Word has length 63 [2023-11-21 22:25:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:28,366 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 225 transitions. [2023-11-21 22:25:28,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 6 states have internal predecessors, (32), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-21 22:25:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 225 transitions. [2023-11-21 22:25:28,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-21 22:25:28,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:28,369 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:28,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:28,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-21 22:25:28,593 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:28,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:28,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1394548950, now seen corresponding path program 1 times [2023-11-21 22:25:28,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:28,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930681574] [2023-11-21 22:25:28,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:28,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:28,749 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:25:28,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2141853895] [2023-11-21 22:25:28,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:28,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:25:28,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:28,751 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:25:28,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f41fd5e9-6c8e-442a-bf77-d64c49b1f61f/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-21 22:25:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:32,929 INFO L262 TraceCheckSpWp]: Trace formula consists of 2825 conjuncts, 215 conjunts are in the unsatisfiable core [2023-11-21 22:25:32,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:33,479 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:25:33,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 29 [2023-11-21 22:25:35,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-21 22:25:35,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2023-11-21 22:26:01,102 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:26:01,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 46 [2023-11-21 22:26:07,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-21 22:26:08,533 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 106 [2023-11-21 22:26:08,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 100 [2023-11-21 22:26:08,580 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55